Datasheet

LTC2923
4
2923fa
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Specifications are at T
A
= 25°C unless otherwise noted.
I
GATE
Fast Pull-Down
vs Temperature
TEMPERATURE (°C)
–50
I
GATE
(mA)
15
20
25
25
75
2923 G04
10
5
0
–25 0 50
30
35
40
100
V
CC
= 5.5V
V
CC
= 2.9V
V
CC
(V)
2.5 3
I
CC
(mA)
1.3
1.4
1.5
5
2923 G05
1.2
1.1
1.0
3.5
4
4.5
5.5
I
TRACKx
= I
FBx
= 0mA
I
RAMPBUF
= 0mA
V
CC
(V)
2.5 3
I
CC
(mA)
7.8
7.9
8.0
5
2923 G06
7.7
7.6
7.5
3.5
4
4.5
5.5
I
TRACKx
= I
FBx
= –1mA
I
RAMPBUF
= –2mA
I
CC
vs V
CC
I
CC
vs V
CC
V
TRACKx
vs Temperature V
RAMPBUF(OL)
vs Temperature
TEMPERATURE (°C)
–50
0.785
V
TRACKx
(V)
0.790
0.795
0.800
0.805
0.810
–25
02550
2923 G07
75 100
V
CC
= 2.9V
I
TRACKx
= 1mA
V
CC
= 2.9V
I
TRACKx
= 10µA
V
CC
= 5.5V
I
TRACKx
= 1mA
V
CC
= 5.5V
I
TRACKx
= 10µA
TEMPERATURE (°C)
–50
60
V
RAMPBUF(OL)
(mV)
70
80
90
100
120
–25
02550
2923 G08
75 100
110
V
CC
= 2.9V
V
CC
= 5.5V
V
RAMPBUF(OH)
vs Temperature
I
TRACKx
vs V
CC
TEMPERATURE (°C)
–50
130
120
110
100
90
80
70
60
25 75
2923 G09
–25 0
50 100
V
RAMPBUF(OH)
(mV)
V
CC
= 2.9V
V
CC
= 5.5V
V
CC
(V)
3
I
TRACKx
(mA)
11
12
13
4.5
5.5
2923 G10
10
9
8
3.5 4 5
14
15
16
V
TRACKx
= 0V
V
CC
(V)
0
0
V
SDO(OL)
(V)
0.2
0.2
0.6
0.8
1.0
1
234
2923 G11
5
I
SDO
= 10µA
I
SDO
= 5mA
V
SDO(OL)
vs V
CC
Tracking Cell Error vs I
TRACKx
I
TRACKx
(mA)
0
ERROR (%)
3
4
5
4
2923 G12
2
1
0
1
2
3
5
ERROR = • – 1
V
TRACKx
0.8V
I
FBx
I
TRACKx
EXACTLY 2%